Unifix Square Plate Round Hole Washers - M10 x 40 x 3.0 - Black

The Unifix Square Plate Round Hole Washers are designed for use with M10 bolts, providing a secure...

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The RangeUnifix Square Plate Round Hole Washers S/Col - M10 X 40 X 3.0 - Vps 40 3 10 000 - Box Of 100 - Black
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eBayUnifix Square Plate Round Hole Washers S/ColM10x 40x 3.0 VPS40 3 10000Box of 100
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B&QB&Q - Square Plate Round Hole Washers S/colM10 X 40 X 3.0Vps 40 3 10 000Box Of 100
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Product Information

Full details

The Unifix Square Plate Round Hole Washers are essential hardware components designed for professional contractors and DIY enthusiasts who require a secure, stable fastening solution for M10-sized bolt connections. Providing superior load distribution and stability across various construction projects, these washers ensure long-term structural integrity; however, users should verify that the 40mm plate size provides sufficient surface area for their specific mounting material to prevent indentation.

All features

ColourBlack
Model Part NumberVps 40 3 10 000
BrandUnifix

Extended Product Information

FAQs

Are these washers compatible with M8 or M12 bolts?

No, these are specifically designed for M10 bolts. Using them with other sizes will result in an insecure or improper fit.

Can these be used for structural steel applications?

These washers are suitable for general construction and DIY, but always verify the structural requirements of your specific project with a professional if you are unsure about load-bearing specifications.

What is the thickness of these washers?

The washers have a thickness of 3.0mm.

Do I need to use a spring washer as well?

Depending on the application, you may choose to use a spring or lock washer in combination with this plate washer to prevent loosening due to vibration.

Will the black finish rust?

The washers are built for durability, but the black finish should be kept dry to prevent potential surface oxidation over time.

Troubleshooting

Washer rotates during tightening

Hold the washer firmly in place with pliers or a wrench until the bolt is tightened enough to create friction.

Bolt does not fit through the hole

Verify that your bolt is exactly an M10 size and that there is no burr or debris inside the washer hole.

Pros and Cons

Pros

  • Increases structural stability by distributing bolt load
  • High-quality construction ensures long-term reliability
  • Perfectly sized for M10 standard hardware
  • Square plate shape provides better support on softer materials

Cons

  • Specific to M10 bolt sizes only
  • Not intended for extreme corrosive or marine environments
  • Requires precise alignment during installation

Setup, Compatibility & Care

To install, simply slide the washer onto the shank of your M10 bolt before inserting it into the mounting hole. Ensure the flat side of the washer is flush against the surface to maximize the contact area. These washers are compatible with standard M10 bolts and threaded rods. To maintain their integrity, keep the washers dry and free from debris before installation. If using in outdoor settings, regular inspection is recommended to ensure the finish remains intact and that the fastening remains tight over time.

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